Improvement in locomotive smoke-stacks



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WILLIAM JAMES MEI-IARY, OF PHILADELPHIA, PENNSYLVANIA.

Letters vlctentNo. 105,107, dated July 5, 1870.

IMPROVEMENT IN LOCOMOTIVE SMOKE-STACKS.

The Schedule referred to in these Letters Patent and making part of the same I, WILLIAM-'JAMES MEHARY, ofl Philadelphia, county of Philadelphia, State of Pennsylvania, have invented an Improvement in Locomotive Smoke- Stacks, of which the following is a specification.

Nature mul Object of the Intention.

My invention relates to an improvement in'the spark-arresters ot' llocomotive smoke-stacks; and

It consists in rendering the usual conica-l deflect'or vertically adjustableupon rods ori-guides, and in retaining the said deflector in any position to which it may be adjusted, by means of pinso'r equivalent devices, instead of by the usual screwsand nuts, which are apt to become jammed and almost immovable, after having been in use fora short time, thus rendering the adjusting of the Adeiiectora matter of extreme difficulty. Description of the Accompanying ,Drawing/f Figure 1'is a view of the interior of a locomotive smoke-stack with my improvements, the outer Acasing being shown in dotted lines;

Figure 2, a sectional plan view on theline 1 2, fig. 1; Figure 3, a sectional view of the adjustable` deflector; and

Figure 4, a view of a modification. l

General Description.

'Ihe stack illust-rated in the drawing 'is of the saine general form as those in common use, it consist-ing mainly of a cast-iron base, A, to which are bolted or riveted an outer casing,A B, and an inner casing or chimney, C, the latter supporting a conical delector, F, which arrests the sparks as they emerge frointhe chimney, and directsY them toward the gratings, Ste., arranged vin the casing B, the sparks, in an unignited state, dropping finally to the bottom of the space b etween the said casing and chimney, from which they may be withdrawn from time to time.

The deiector is generally supported inits position by means of bars or rods secured to the chimney C, it being 'in some cases perinanentlyfastened to these rods. As the proper arresting and diverting oi' the course ot' the sparks depends, however, upon the height of the defiector above` the chimney, and also Vupon the force 'with which the sparks are impelled whole forming a rigid frame for the support of the deector.

lhc bars a a are, in the present instance, squared, as best observed in fig. 2, and serve as guides for .plates-cl ateithcr side of the dedector, these plates partially embracing the bars, and, consequently, enabling the deflector to be raised and lowered to-any desired 'extent without risk of becoming detached.

A row of holes, adapted to receive a pin, f, is formed in each of the guiding bars a, and in each of' the plates (l there is also a hole, so that the dedector, when adjusted to the desired position, may be there retained by merely' inserting the pinsf through the holes' in y both guiding-rods and plates, as shown in iig. 1.

The pins are prevented from being accidentally, withdrawn by split keys It, and both the pins and keys are connected to the guiding rods or their crossbar b by light chains fi, which prevent any mislaying of the same.

The defiector is provided with a lift-ing bar or hani die, la, which passes through an opening in the crosspin, m, adapted to holes in the cross-piece, canbe passed, in order to temporarily sustain the weight ol the dei'lector,` when the pins f have been withdrawn, or the pin m may be used instead of, or in connection withV the pins f, in retaining the deflector in any position to which itis adjusted.

The weight of the deflector might also be sustained by means of a catch or lever, p, adapted to notches in the sidevof the bar k, as shown in fig. 1.

In some smoke-stacks, such as those, for instance, which are entirely covered at the top` by wire-gauze, the useof the lifting bar L might be objectionable. In such case, a simple eye onthe dcflector and wheel and chain, or equivalent device attached to the cross-piece l1, as shown in figvfi, might be substituted for the said bar.

'Ihe cross-piece l), besides serving as a guide and support for the lifting bar, or other arrangement used in place of the same, serves also as a brace to stilen and prevent thc warping and twisting of the guidebars a.

In carrying out my invention more than two of' the said guide-bars may, if desired, be used, and they can be round or of otheisectiona-l form, instead of square.

` Claims.

1. A deflector Vfor locomotive smoke-stack, rendered vertically adjustable upon guiding-rods a, and maintained in any position to which adjusted-by n ieans of pins or their equivalents, all sl'lbstantially as herein described. ,y f

2. The within-described frame, for the support the adjustable defiector, consisting of bars secnredto the inner casing of the stack, and connected together at the top by a. cross-piece, b.

3. The lifting bar k, or its equivalent, secured to the adjustable deector, and adapted and arrangedf'or attachment 'to'the cross-piece b', substantially as described.V

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

VW'ILLIAISI JAMES MEHARY.

Witnesses:

" L. J. 'S0MERs, I WM. A. STEEL. 

